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Finding the Fourth Proportional to 404,331.20, 606,934.20 and 254,740.40

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Solution

The fourth proportional to 404,331.20, 606,934.20 and 254,740.40 is: 382,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,331.20 : 606,934.20 = 254,740.40 : x
  2. Step 2: Convert to fraction form
    404,331.20/606,934.20 = 254,740.40/x
  3. Step 3: Cross multiply
    404,331.20x = 606,934.20 × 254,740.40
  4. Step 4: Simplify right side
    404,331.20x = 154,610,660,881.68
  5. Step 5: Solve for x
    x = 154,610,660,881.68/404,331.20
  6. Step 6: Final answer
    x = 382,386.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.